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BMW 3 series open door, window drops .... how?

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Old 23-11-2007, 04:10 PM
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Martin-Hadland
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Default BMW 3 series open door, window drops .... how?

As most of the folk on here seem to be into BMW's.... Does anyone know what a 2dr 3 series uses to make the window drop when the door opens and close back up when it's shut? I want to make my 6 series do the same as the doors close nicer when the window is 1/2" down...
Old 23-11-2007, 04:13 PM
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Daviet
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dunno but most convertables have them these days if easier to get of another car?
Old 23-11-2007, 04:16 PM
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JTECH James
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do they make a soft top 6 series??? that may have the thing you want and have the same loom...most bm soft tops do it iirc
Old 23-11-2007, 04:16 PM
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?
Old 23-11-2007, 04:17 PM
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carlo
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Shit just read this right..Its in the door latch it tells the window to drop i can find out how it works 2 moro i.e wiring diagram or cont unit
Old 23-11-2007, 04:17 PM
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Audi TT's also do this and the new Mini's i think.


Mart.
Old 23-11-2007, 04:18 PM
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Minis also do this..It cant be complicated as the first of the e36 coupes have this

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Old 23-11-2007, 04:46 PM
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Martin-Hadland
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Originally Posted by carlo
Minis also do this..It cant be complicated as the first of the e36 coupes have this
The E36 is what gave me the idea, can you find out?
Old 23-11-2007, 04:46 PM
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Martin-Hadland
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Originally Posted by JTECHSAFF
do they make a soft top 6 series??? that may have the thing you want and have the same loom...most bm soft tops do it iirc
BMW never made an E24 soft top.
Old 23-11-2007, 04:51 PM
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Doesn't help much, but Vauxhall Calibras do this too.
Old 23-11-2007, 04:54 PM
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it switches from the handle doesnt it???iirc

the windows drop before the actual door opens....may not be to easy to fit


if it worked off a door pin switch, by the time the switch had realised the door was open it would be too late to open a window
Old 23-11-2007, 04:59 PM
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Originally Posted by JTECHSAFF
it switches from the handle doesnt it???iirc

the windows drop before the actual door opens....may not be to easy to fit
It probably does switch from the handle but that will only be a micro switch, I don't think it will be that hard to do.. Hopefully!
Old 23-11-2007, 05:04 PM
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ive got modules that would open or close windows on command, but not open and close.....and mine would want to fully open or close,not just crack open



goodluck
Old 23-11-2007, 05:08 PM
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AlexF
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Its not a switch as such in the handle, its a hall effect sensor.

That pases the information to the ZKE or central body electrics ECU. On later cars there is no ZKE as such but the functions are carried over into other control units, on a MINI its called the BC1 for example.

It wouldnt be impossible to retro fit, but it wouldn't be easy.
Old 23-11-2007, 05:09 PM
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It doesn't work from the handle, as you don't touch it to close. It opens after you've opened the door, then closes when it's shut. Must be a micro switch somewhere.
Old 23-11-2007, 05:15 PM
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im sure on an m3 i had in i could crack the window open and closed by rocking the handle a tad...not opening the door
Old 23-11-2007, 05:15 PM
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probably opens on handle, and closes on latch contact
Old 23-11-2007, 05:26 PM
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GARETH T
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im sure it would be easyer to make yur own unit, than to try and retro fit a BMW's one
Old 23-11-2007, 05:37 PM
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Originally Posted by AlexF
Its not a switch as such in the handle, its a hall effect sensor.

That pases the information to the ZKE or central body electrics ECU. On later cars there is no ZKE as such but the functions are carried over into other control units, on a MINI its called the BC1 for example.

It wouldnt be impossible to retro fit, but it wouldn't be easy.
Just reading a Haynes manual and it does say that the saloon model windows are controlled by the ZKE unit but goes on to say that the coupe models are different and have two ecu's one attached to each window motor. Trouble is they only give a wiring diagram for the saloon models.
Old 23-11-2007, 05:38 PM
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Originally Posted by JTECHSAFF
probably opens on handle, and closes on latch contact
yup
Old 23-11-2007, 05:41 PM
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I need to get my E36 up to you for a couple of jobs - you can pull a door apart and take a look
Old 23-11-2007, 05:42 PM
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Just done a bit of googling and found this. It appears the micro switch is in the door latch. http://home.earthlink.net/~frankie66...croswitch.html
Old 23-11-2007, 05:42 PM
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Originally Posted by JTECHSAFF
probably opens on handle, and closes on latch contact
Boxster opens on the handle, E36 is the latch
Old 23-11-2007, 05:43 PM
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You have a new or a classic 635 csi martin?
Old 23-11-2007, 05:46 PM
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AlexF
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Originally Posted by jabba
Just done a bit of googling and found this. It appears the micro switch is in the door latch. http://home.earthlink.net/~frankie66...croswitch.html
good find...

maybe e46 are hall effect
Old 23-11-2007, 05:50 PM
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Originally Posted by bigchez
You have a new or a classic 635 csi martin?
E24 Pimpster!
Old 23-11-2007, 05:53 PM
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Originally Posted by bigchez
You have a new or a classic 635 csi martin?
Classic baby Just putting it back together after a mini resto...

Old 23-11-2007, 06:04 PM
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I will look out a e36 chasis number 2 moro morning at work & print of the door wiring diagram & fax it to you..If the window dosent drop on all coupes its a fault in the door lock common on e46 coupes we replace the locks but not sure if its still controled by the basic module or bc1..I will look into it & get back to you
Old 23-11-2007, 06:11 PM
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loads of modern german cars do this now, if they have frameless windows.
Old 23-11-2007, 06:12 PM
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that classic 6 series is seriously cool martin
Old 23-11-2007, 06:24 PM
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Martin-Hadland
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Originally Posted by GARETH T
that classic 6 series is seriously cool martin
Agreed Mine has only done a genuine 41k miles from new
Old 23-11-2007, 06:26 PM
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i think all newish bmws can do it.

Also when you lock the car, you press the bmw logo. If any windows are open at whatever length, when you keep it held down for about three seconds and keep holding it down they all go back up until you let go.

Same principle with opening it. You hold the open button down and they open to as much as you want them to until you let go
Old 23-11-2007, 06:35 PM
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Originally Posted by martin-reyland
Originally Posted by bigchez
You have a new or a classic 635 csi martin?
Classic baby Just putting it back together after a mini resto...

Cool!

You gonna strap a gt35 to it?
Old 23-11-2007, 06:36 PM
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Ive always wondered how this system works. Does anyone have a video of the system running/operating - ive never seen it work?

When the door is opened to the windows "drop" down slightly by use of the motors or do they slide down via some other mechanism? My guessing is they operate very quickly, unless there is a delay in how quickly you can open the door?

Cheers
Old 23-11-2007, 06:49 PM
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the motors move...
Old 23-11-2007, 06:56 PM
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the mrs's slk has like a little trgger on the door latch that drops the window
Old 23-11-2007, 08:00 PM
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they open to stop the seal being air tight

so when you close the door you don't get your ears popping with the sudden increase in pressure because there is space for the air to escape

on some cars it's also there to make the door easier to close rather than having to thump it shut

just in case anyone was wondering why there was a need for this feature on some cars
Old 23-11-2007, 08:18 PM
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as said it is a switch in the door catch, as when door is closed it pushes the switch in causing the window to go up, and when opening the door the allows the glass to drop uner the seal.. if u want a pic i can get one in the morning?
Old 24-11-2007, 12:42 AM
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i think in future Martin im going to pm you my bmw questions to post on here for me... it seems everyone will answer you.... i post somthing about a bmw and it gets ignored.. i guess it must be your celeb status...LOL
Old 24-11-2007, 01:28 AM
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If you get the parts from a 307cc cabriolet, the windows will drop just by touching the door handle. Fook knows how they work though


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